BREAKING--The Andrews government's push to strengthen Victoria's climate change laws has passed the upper house--winning the support of The Greens and crossbenchers Fiona Patten and James Purcell.

Friends of the Earth welcome the passage of amendments to the Victorian Climate Change Act. That enshrines a zero-net emissions target by 2050 into law. It also requires governments to set five-yearly interim emissions reduction targets and adaptation action plans.

"Community members who are seeing the impacts of climate change will welcome the strengthened climate change laws," said Leigh Ewbank, FoE climate spokesperson.

"We commend the Andrews government and all MPs who supported the bill which will help prevent climate change from worsening and prepare communities for the impacts that are now locked in."

The Climate Change Act was put in place in 2010 but was gutted by the Baillieu government a year later. Victoria lost almost five years in a decade when the world was running out of time to avoid climate catastrophe.

"With the Act finally re-built to include greenhouse gas reductions, it is essential we get on with the task of rapidly transforming Victoria's economy away from its current reliance on coal. We do not have any more time to waste," said Ewbank.

Friends of the Earth says the Andrews government can make a downpayment in the upcoming state budget.

"The Andrews government can follow through on its commitment to climate change action with strategic budget allocations in May," said Mr Ewbank.

"Victorians overwhelmingly support action on climate change and want to see governments put money where their mouth is."

Friends of the Earth say the passage of the strengthened climate laws is a positive indication for how legislation on Victoria's Renewable Energy Target will fare.